You'll love the zodiac because a free multi emulator is available for it read more at
http://yoyofr92.free.fr/ljz/index.html
From the site:
Little John Z, YoYo's much anticipated, everything-but-the-kitchen-sink emulator for the Zodiac has finally been signed and released to the public, free of charge. Jeff Mitchell, aka "Skeezix" from CodeJedi, started off temporarily hosting the signed file, but the latest update (just released today) can be found on YoYo's Official LJZ site.
LJZ is an emulator for the following platforms:
Gameboy, Gameboy Color
Genesis
NeoGeo Pocket, NeoGeo Pocket Color
NES, SNES
Turbo Grafx-16
WonderSwan, Wonderswan Color
Version .7
Zodiac Only
# [ALL] Compiled with more optimization, so perhaps a little speed boost (no time to benchmark)
# [ALL] Changed the creator IDs to have one for each .prc files : no more trouble with radial menu
# [SNES] Fixed the crashing bug at exit when having loaded a savestate before
# [GUI] Fixed the flickering at the end of the gfx effect at launch time.